Apparatus for the manufacture of sugar



G. AIZCORVE.

APPARATUS FOR THE MANUFACTURE OF SUGAR. APPLICATION FILED m4. 5. 1918.

1 ,358,132, Patented Nov. 9, 1920.

3 SHEETS-SHEET I.

INVENTOR :srzaw m? 0/27 4/260/PVf ATTORNEY E. a. AIZCORVE. APPARATUS FOR THE MANUFACTURE OF SUGAR.

Patented Nov. 9, 1920.

3 SHEETS-SHEET 2.

APPLICATION FILED JAN- 5, l9l8.

557134 602/? wzmmf APPLICATION FILED JAN. 5. l9l8.

Patentd Nov. 9, 1920 3 SHEETS-SHEET 3.

INVENTOR [TS/754m Wii/f/ 4/Z0/FVE BY 4w waded W ATTORNEY UNITED STATES ESTEBAIN eo'nnrrr AIzconvE, or CAIBARIEN, CUBA. j

APPARATUS FOR THE MANUFAGTURE OF SUGAR.

specification of Letters latnt. Patentd N V; 9,

Application filecl J'anuary 5, 1918. Serial lilo 210,565.

To all whom it may concern: 7

Be it known that I, Esrnnim Gonnirr Ara oonvn, a subject of the King of Spain, residing-at Caibarien, Cuba, have inventednew and useful Improvements in Apparatus for the Manufacture of Sugar, ofwhich the fol- I lowing is a specification. j

. My invention relates, in general, to theindustry oi the manufacture of sugar from sugar cane, and makes reference more particularly to that class of apparatus employed in said industry in order to clarify the juices of the sugar cane, separating from the same the impurities which it contains in suspension; and the prime object of the invention isto provide an apparatus to accomplish said clarification, of a sirnple construction, which can be easily and economically installed, handled with very little effort-and efiicient in operation. i i

It is known that the clarification of the saccharinejuice is eflfected by heating the juice after neutralizing its acidity, in suitable apparatus. In, these apparatus, called purificators, the solid and lighter substances contained in suspension in the juices, rise to the top, heaping up on the liquid surface by the-elevation of the temperature, and the heavier materials are precipitated to the bottom, leaving an intermediate zone of juice-relativelyclear andfree from impurities. In order to carry out this depuration or clarification'it has been necessary to install a considerable number of purifiers requiring the consumption of a considerable amount of steam and resulting in a'costly operation and waste oftime. Moreover, if it be taken into consideration that when the separation of the solid'particles is accomplished by heat it is necessary to allow the liquid to stand fora considerable length of time in orderto permit the precipitation of the remainingparticles and the consequent separation of the same.

As will be understood by the brief explanation just made regarding the manner actually employed or" clarifying the saccha rine juices, this operation is costlyand dilatory, and the juice obtained is not free of impurities; and to overcome this difficulty I V have designed the present invention, which essentially consists in a modification'ofthe apparatus usually employed for evaporating the water contained in the juice, so that the clarification of same and the evaporationzof said water is performed atone and the same time in the above mentioned apparatus, a manner substantially uninterrupted or continuously, eliminating completely the use "of the purifiers and the inconveniencesresulting therefrom. V 1 1 The invention is described inrelation to the figures of the accompanying drawings,

Figure 1 is aperspeotive view of a vacuum evaporating apparatus, Inodifiedaccording to my invention; Fig. 2 is anupper plan view of the same; Fig. 3 showsa side elevation of the body of a single effect apparatus in which my invention is applied; Fig. 4 represents a perspective view of an apparatus for operating the clarification andthe evaporation simultaneously without the use of vacuum; and Fig. view partially broken, of the apparatus illustrated in Fig. 4. 1, i j 1 I 'In all the figures the identical parts are indicated by the same characters of reference. e

Substantially my invention is designed to separate into two parts the, evaporating apparatus employed until now, which comprises a lower chamber for heating the liquid and a superior or upper chamber wherein the vacuum, is applied, unitingthen both chambers by means of a closed channel, as willbe seen in the following description.

The numeral 1, shows the heating cham ber of the juice, which is to be purified. This chamberis constructed similarly to the body or lower chamber of any evaporator in use, and therefore it may be provided with a double bottom, or" serpentine or tubes coils or; worm or any other suitablev means for circulating the steam and heating the liquid in the chamber. 1

At the top of said chamber is bolted the channel or closed conduit 2, preferably constructed in arectangular section, extending from one side of the chamber 1. Said channel, which is connected'at one end with the said chamber 1, is provided at'the other end with a rectangular body 8,- projecting upward to which is joined the body 4:, which constitutes the vacuum chamber ofthe evaporating apparatus. 1 The bottom 5' of the 1 channel or conduit 2 is inclined and extends downwardly from the chamber, 1 and adjacent to the lower end of thebottom of the channel or conduit 2 a valveG isprow 5 shows ;a top plan fled to flow into the channel until the'chamher '1 is filled and the channel 2 up to a certain height, for instance,a little above the middle of the height ,ofthe channel,,-the

walve being then closed so that an air space is left betweenlthe surface of the liquid andthe top of the channel 2.

7 When the steam is applied to the heating chamber 1, the temperature of the liquid in the chamber and in thechannel 2, rises, and a circulation or currentis established, flowing from the heating focus in the chamber, toward the otherend of the channel, and this current drives back'against the vertical wall 'Z, which is the limit of the-channel 2 all the-solid particles and foreign matter contained in suspension in "the cold juice coming through the valve 6, reuniting at this point not only the heavier substances but the lighter ones, and from thence they are removed byanyc onvenient means (not shown) thr'oughthe openi'ngB provided in the-vertical wall-7. The opening 8 is controlled by'a door 8, as shown in Fig. 3. H

heaterchamber 1', a pure and clear juice is found, free from all impurities because those contained in the V c'old liquidentering through the-valve 6,- are held-"back before arriving at thec'hamber by the flow of liquid resulting from the higher temperature of the liquid in thecha'mb'erl than in thechannel 2, as explained already. The heating of the liquid in the chamber 1 results-in a boilingor agitation of the liquid I and a flow of' thesame from the heatingchamber, the-lighter partiiles being carried along the closed conduit toward the outer end thereof by the foam on the surface of the liqui'd, while the heavier particles are carried downwardly and outwardly along the inclined bottom 'which facilitatesthe movement of the heavier particles away fromthe heatinghamber andwhich tends toprevent them from entering the said heatinglchamber. Thisliquidnow clarified and free from a great deal of water, is carried through thevalve 9, pipe 10, and'valve 11, from the chamber l to' anothersimi'lar evaporatingapparatus, in which it isagain submitted to the same operations, losing-much I more water and be oming clearer'an'd purer and from there is carried to the-thirdevaporator by valve18, pipe 14 and valve 15;

By the foregoing description as 'well as by the examination of Figs. 1, 2 and 3, will be seen that the description hasbeen made as if the invention qhad been applied to an evaporating apparatus of triple effect wherein is employed the vacuum in order v to fa ilitate the evaporation ofthe water and the concentration of the saccharineelements, butit is evident that the modification described may be also employed in a simple effect-"or :in=alzmulti'pleefl ect, as dearranged.

sired, using for it, respectively, a simple or several modified apparatus, conveniently In like manner invention may be adapted, to operateiwithout the use of the vacuum, and in this form of the invention The manner of operating this apparatus is similar to that already described in rela tion with vacuum evaporators. A single apparatus comprising'this modification may be also employed, or a plurality arranged in a convenient manner, inorder thatthe liquid may pass through,

iIeat may be applied directly to the heatingchamber, or the chamber may be provided with a doublebottom, or serpentine or coils or worm or any other device suitable for circulating steam and heating the liquid. Y

It is obvious that minor changes'may be.

made: in the'form and construction of this invention withoutdeparting from the materialprinciples thereofi It isnot therefore desired'to confine the invention to the exact form herein shown and'described, but to include all such as properly come within the scope of the appended claims;

. Having thus described the inventiomwhat is claimed as new, is:

1.. in apparatus for clarifying the juices of sugar comprising a closed conduit, a heating chamber-located beneath and connected with oneend of the conduit, a vacuum chamber arranged at the other end of the said-conduit at the upper portion thereof, said conduit being provided at su'h end with a'discharge opening, an outlet'pi 'ae connected to the heating chamber, andan inlet pipe connected to the conduit adjacent the said discharge opening. V Y V I 2. An" apparatus for clarifying-andevap orating saccharine juices comprising a closed conduit, a heating chamber located below and connected with one end'of the conduit, saiduconduit' being'providedat its other end with discharge opening, a closurefor saidopening, an outlet pipe con nected withthe said heating chamber, and an inlet pipe connected to thesaid conduitat the end'remote from the heating chamber.

7 An apparatus for clarifying thejuices ofsugar"comprising-a heating tank, a horizontally disposed channel connected to the top of's'aid tank at one'end thereof andfhaving' a discharge opening at the endremote from said tank, the bottom wall of said channel being inclined upwardly toward the tank, an outlet pipe communicating with said tank at a point below said channel, and an inlet pipe communicating with said channel at the end remote from and above said tank for admitting cool juice to said channel.

4. An apparatus for clairifying and evaporating saccharine juices, comprising a heating chamber, a closed channel connected to the upper portion of the heating chamber, said channel having its bottom inclined downwardly away from said chamber, and

means for admitting juices at the low end 7 of said channel.

5. An apparatus for clarifying and evaporating saccharine juices, comprising a heating chamber, an unobstructed channel connected to the upper portion of the heating chamber, said channel having its bottom inclined downwardly away from said chamher, and means for admitting juices at the low end of said channel.

6. An apparatus for clarifying and evaporating saccharine juices comprising a closed conduit having an inclined bottom, a heating chamber located beneath and connected with the conduit at the upper end of the bottom and provided with'an outlet, said conduit being provided at the end remote from the heating chamber with a discharge opening, and means also located at such end of the conduit for introducing liquid into the same.

Inv testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ESTEBAN GORRITI AIZOORVE.

Witnesses:

C. CHARTRAND, Dr. CARLOS GARALE. 

